<NIS.NSF.NET> [IMR] IMR88-06.TXT
JUNE 1988
INTERNET MONTHLY REPORTS
------------------------
The purpose of these reports is to communicate to the Internet Research
Group the accomplishments, milestones reached, or problems discovered by
the participating organizations.
This report is for research use only, and is not for public
distribution.
Each organization is expected to submit a 1/2 page report on the first
business day of the month describing the previous month's activities.
These reports should be submitted via network mail to Ann Westine
(Westine@ISI.EDU) or Karen Roubicek (Roubicek@NNSC.NSF.NET).
BBN LABORATORIES AND BBN COMMUNICATIONS CORPORATION
---------------------------------------------------
WIDEBAND NETWORK
The Wideband Inter Switch Trunk (IST) lines which carry Arpanet
traffic continued to improve their performance during the past
month. After correcting both hardware and software problems with
the BSATs, these lines have carried heavy traffic loads with few
problems.
The Wideband Net has also been supporting the development of multi-
media, multi-site conferencing. Additional conferencing sites are
currently being setup up to provide multi-site conferencing over
the Wideband Net.
To aid the simultaneous use of the Wideband Net by the Arpanet
lines and the video conferences, software was distributed to allow
fast, synchronous reconfiguration of the network. Now, sites that
are infrequently used can be deconfigured; the channel capacity
used by those sites is then freed up for use by other sites. When
the infrequently used sites need to use the network, they can be
reconfigured.
SATNET
The SATNET has been very stable through the month of June. We have
had no unscheduled outages of the SATNET SIMPS or PSP terminal
hardware. The U.S. was isolated from the SATNET because of a
problem at the WUI telco office from 6/19/88 to 6/20/88. The
Westine [Page 1]
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availability of the SATNET was above 99% from tests run by ISI for
all sites.
The CNUCE and UCL gateways had hardware failures this month. The
UCL gateway was repaired by replacing a processor node. Because of
customs delays in getting a processor to CNUCE service was restored
by loading software which allows the gateway it to operate with
only 2 processors. The RSRE to Goonhilly link was down from
6/19/88 to 6/29/88 due to problems on the kilostream line.
INTERNET R&D
The Internet continues to grow. We are currently at about 450
operational networks.
We completed the Telenet certification of the Butterfly VAN Gateway
gateway X.25 interface and submitted the results to Telenet. From
our understanding of the test we think we passed. We await the
results from Telenet.
We attended the IETF meeting in June and the Open Routing Working
Group held a meeting before the IETF.
VAX NETWORKING PROJECT
A multicast routing daemon is now running under 4.3bsd (although
still not fully debugged). We have also begun work to implement
the proposed Gateway Discovery ICMP messages on our 4.3bsd test
host.
VAX NETWORKING PROJECT
A multicast routing daemon is now running under 4.3bsd (although
still not fully debugged). We have also begun work to implement
the proposed Gateway Discovery ICMP messages on our 4.3bsd test
host.
Bob Hinden (Hinden@BBN.COM)
ISI
---
Internet Concepts Project
Recent investigation into the issue: How might one design network
layer controlling protocols so that they are highly resistant to
attack either accidentally or by deliberate intervention? This
issue, the vulnerability of some current network layer protocols
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and an example of an attack resistant protocol are discussed in
ISI-RR/88-201.
Greg Finn (finn@isi.edu)
Paul Mockapetris attended the Internet Engineering Task Force
Meeting in Annapolis, MD, 14-17 Jun.
Four RFCs were published this month.
RFC 1055: Romkey, J., "A Nonstandard for Transmission of IP
Datagrams Over Serial Lines: SLIP", June 1988.
RFC 1056: Lambert, M., "PCMAIL: A Distributed Mail System for
Personal Computers", MIT, June 1988.
RFC 1057: Sun Microsystems, Inc., "RPC: Remote Procecure Call
Protocol Specification", Version 2, June 1988.
RFC 1058: Hedrick, C., "Routing Information Protocol",
Rutgers University, June 1988.
Ann Westine (Westine@ISI.EDU)
Multimedia Conferencing Project
Work this month was geared primarily towards the July 7th three-
site teleconference between DARPA, ISI, and BBN. The system
underwent the final evolutionary phase to accommodate multisite
conferencing. This meant adding capabilities to the packet video
program and video codec for receiving multiple streams of video
data and delivering them to separate quadrants on the Image30.
To supplement this, the multimedia conference control program was
extended with a multipoint protocol for conference connection and
disconnection. Furthermore, it now has the ability to operate in an
"autopilot" debug mode, for testing of remote conference set up
when no user is around at the remote site to help out.
A version of echo canceler software on the Evakit, the development
system for the NEC7720 signal processing chip, was completed.
Currently the software implements an echo canceler with 51 tap
weights and includes near-end speech detection and center clipping
of residual echo. The near-end speech detection scheme works by
setting a threshold around a far-end signal with suitable
attenuation and time delay which has the maximum correlation with
the near-end signal with out near-end speech. Near-end speech is
declared if it falls outside this limit. This version of the
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software has been tested alone and seems to perform satisfactorily.
The next step is to test the software at both ends and this means
moving the software into the EPROM version of the NEC7720.
Currently, difficulties with the EPROM version have been
encountered.
Brian Hung, Steve Casner, Dave Walden, Eve Schooler (hung@ISI.EDU,
casner@ISI.EDU, djwalden@ISI.EDU, schooler@ISI.EDU)
NSFNET Project
Annette DeSchon started work on a "BFTP Tool", which runs in the
SunView(TM) window environment. This tool will provide a window
based user interface for use in submitting file transfer requests
to a BFTP server running on a Sun workstation. Work on the
associated BFTP RFC is progressing.
Annette DeSchon (DeSchon@ISI.EDU)
Supercomputer and Workstation Communication Project
Alan Katz continued work on a split editor that runs under GNU
Emacs. Alan added a remote dired, rlogin, and ftp modes. Alan
attended the Fourth Annual Workshop on Networking and
Supercomputers sponsored by NCAR and held in Boulder, CO, June 7-9.
Alan Katz (Katz@ISI.EDU)
MIT-LCS
-------
After almost a year of work, our network simulator has reached a
stable stage and we would like to share it with friends who are
interested in playing with it. Whoever is interested may contact
Andrew Heybey (atheybey@ptt.lcs.mit.edu) about getting the code.
They should be pre-warned, however, that the simulator is still an
experimental system and therefore we do not make any guarantee
about it being bug-free. We will try our best to fix any bug
reported. We will also appreciate any comments/suggestions about
how to further improve the simulator.
Lixia Zhang (Lixia@XX.LCS.MIT.EDU)
NTA-RE and NDRE
---------------
No report received.
Westine [Page 4]
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SRI
---
Internet Research
No Internet related progress to report besides my attendance at the
Open Routing Working Group and IETF meeting at the Naval Academy in
Annapolis, Maryland, 14-17 June.
Zaw-Sing Su (ZSu@SRI.COM)
UCL
---
Infrastructure.
The FDDI Campus net is now operational. In principal, it is
connected to the internet via the CS gateways. In practice, we are
access controlling it, until we work out policies on routing.
Research.
Enhancements to the MAC Routing work include a simple management
protocol (not SNMP), and a simple system to display bridge network
topologies on a PC.
Meetings.
Jon Crowcroft attended the Security meeting at RIACS, NASA Ames, to
represent European views on policy based routing issues.
John Crowcroft (jon@CS.UCL.AC.UK)
UNIVERSITY OF DELAWARE
----------------------
1. Jeff Simpson has narrowed the scope of his research to the
study of policy-based routing algorithms and related
technology. He has amassed an amazing library of past papers
and reports in this area, including the work of the
Internetters, ANSI and NBS. He is currently working on an
issues paper on policy models and mechanisms to stimulate
further discussion and refinement. The Mike Minnich family
produced a new Internetter, class of 2010.
2. Paul Schragger continues to work on feedback-control and
rate-based concepts applied to transport-level communications.
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Paul spent an exciting day with Dave Clark's group at MIT
discussing these concepts and planning further mischief. He
has brought up a snazzy network simulator from MIT on one of
our colorful Suns and is evaluating it for use in support and
refinement of these models. We have ordered a copy of the
commercial OPSNET simulator as well to serve the same purpose.
3. The Network Time Protocol (NTP) community continues to
flourish, with new primary servers online at MIT and planned
for DECWRL and NASA/AMES. Two NSFNET Backbone sites, SDSC and
UIUC, have announced plans to support primary servers using
existing fuzzballs and new or refurbished WWVB clocks. The
tables in three of the existing primary servers were expanded
from about 60 to over 100 peers to support the recent surge in
new chimers.
4. Effective 5 July our U Delaware Unix systems will no longer be
connected to the ARPANET, but will continue service via
SURANET. Our frisky fuzzballs, including NTP servers, will
remain connected to the ARPANET and everything else in town,
but will not carry regular campus traffic. We are in process
of rehoming everything on a single class-B net, which of
course is breaking every little thing.
5. Dave Mills attended an RADC meeting on the Dissimilar Gateway
Protocol (DGP) in Colorado Springs, CO, an IAB telemeeting in
Washington, DC, an INENG meeting in Annapolis, MD, and a NAS
National Security Telecommunications Committee meeting in
Woods Hole. A draft report covering issues in reliable
telecommunication network synchronization was submitted and is
now being revised. A paper on the history and application of
the intrepid Fuzzball was revised and submitted for the
SIGCOMM 88 Symposium. A draft report discussing issues in the
realization of a nationwide gigabit network is now in
preparation. Other work in progress includes a paper on DGP in
collaboration with Mike Little of M/A-COM Government Systems,
which is spelled SAIC as of 1 July.
Dave Mills (Mills@UDEL.EDU)
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NSF NETWORKING
--------------
UCAR/BBN LABS NNSC
The NNSC published and distributed issue 4 of NSF Network News.
Send requests for copies to nnsc@nnsc.nsf.net. We are still
increasing the number of sites for which we are providing backup
domain service. Craig Partridge chaired the Management Information
Base Working Group meeting of the Internet Engineering Task Force
in Annapolis.
by Karen Roubicek (roubicek@nnsc.nsf.net)
NSFNET BACKBONE PROJECT
CORNELL UNIVERSITY THEORY CENTER
Scott Brim attended the IETF meeting and a meeting at RIACS, and
will be attending an Autonomous Networks Task Force Meeting this
week, primarily in relation to issues of policy-based routing.
Jeff Honig continued development of the gated program in
preparation for the deployment of the new backbone. Doug Elias
made presentations at the SuperComputer Workshop in Boulder Colo.
and to MERIT in Ann Arbor on the NSFNet traffic studies. He also
presented a session on System Science Tools at the ACM Conference
on Simulation in Pittsburg using the NSFNet traffic data for his
model.
During the period from October 1987 to May 1988, the amount of
traffic carried on the backbone was four times the amount handled
during the same time period from 1986 to 1987. The Cornell node
alone experienced an eightfold increase in the traffic handled. The
data indicates that Suranet contributed approximately 25% of the
increase to Cornell's traffic.
by Martyne M. Hallgren (martyne@tcgould.tn.cornell.edu)
NEW NSFNET BACKBONE
Saturday evening, June 11, provided an historic moment for the new
NSFNET backbone. At that point, all thirteen nodes had achieved
on-line status and were able to send packets across the backbone.
After two weeks of testing and debugging, several sites were fully
operational and began announcing reachability to their regionals.
By July 6, the following sites were announcing routing information
to their regionals: The Merit Computer Network, NCAR, NCSA,
SURANET, SESQUINET, NYSERNET, JVNC, WESTNET, and NorthWestNet. The
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other four nodes will be phased in during early July.
Upgrades to the Nodal Switching System (NSS) include Version 1
software and some hardware improvements. Other changes include
improved overall network management capabilities.
As of July 1, the Merit Network Operations Center (NOC) hours are
8:00 a.m. - 12:00 a.m. EDT, Monday through Friday and 8:00 a.m. -
6:00 a.m. EDT, Saturday and Sunday. By July 30, the NOC plans 24-
hour operations.
An article on monitoring ("Monitoring Data Exchanges between the
NSFNET Backbone Network and its Attached Regional Clients") is
available in the NSFNET directory on the Information Services
machine by anonymous FTP of the file: monitor.mtg-6-88
by Laura Kelleher (Laura_Kelleher@merit.edu)
NSFNET BACKBONE SITES & MID-LEVEL NETWORK SITES
UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN/NCSANET
Ross Veach attended the Baltimore IETF on June 15-17. His chief
interest were the discussions relating to Son of NSFnet.
Ed Krol, Charley Kline, and Ross Veach met with the Merit group in
Ann Arbor, MI on June 20 to discuss operations and routing issues.
UIUC has split the main building Ethernet into two networks. The
new one is a Class C net (uiuc-remote) for connecting all gateways
with off-campus connections. This includes the NSS, uxc (Arpanet),
and various IP routers that reach either internal UIUC networks or
the regionals.
Work is in progress at NSC to port gated 1.3.1.48 to their EN641
router. UIUC will beta-test its capability to peer with the NSS.
Nine regional nets are being announced to the NSS: UIUC,
UIC(hicago), UofChicago, Northwestern U, Notre Dame, UofWisc
Parkside, UofMinn, Mayo Clinic, and ETA. The MIDNets will not be
announced until p4200s can be convinced not to believe EGP routes
over IGP routes. NSS backbone to Arpanet traffic is being held off
pending resolution of ongoing routing discussions.
by Paul Pomes (paul@uxc.cso.uiuc.edu)
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JOHN VON NEUMANN NATIONAL SUPERCOMPUTER CENTER
This report is designed to inform the JVNC Consortium and JVNCnet
network members as well as the Internet community of monthly status
of the JVNCnet network. The data used on this report is collected
using a number of techniques developed at JVNC, together with data
from the JVNC operations group.
Network brief:
The John von Neumann National Center's high speed network (JVNCnet)
connects seven north-east states plus two mid-west states.
JVNCnet's 13 Consortium Institutions, plus JVNC and 10 non
Consortium Sites form the 24 node network.
The topology of the network (see attached diagram) is a combination
of tree and double rings providing redundancy and high bandwidth
access to the JVNC center, the NSFnet backbone and the ARPANET.
The high speed links are mostly T1 lines (1.544 million bits per
second), the rest are 56,000 bits per second (both terrestrial and
satellite).
The routing switches are a combination of VAXs, UB routers and
CISCO routers.
The network is operated from the JVNCnet Network Operations Center
(NOC) located at the John von Neumann Center, which is staffed from
9 a.m. to 5 p.m., Monday through Friday and covered by the JVNC
Operations group during off hours.
Monthly Status Overview:
The overall uptime for the gateways this month is 95.36% (worst
case, this number considers that all gateways are unreachable when
JVNCA is down, which is why it is called worst case). The measured
uptime when JVNCA was available (99.24% of the time) was for an
average on all the gateways 96.09% available.
Traffic on the JVNCA gateway has been higher this month than last
month, with a total number of packets in and out (of one of its
ethernet interfaces) of 125,237,270 packets.
Plans are moving ahead for the connection of the JANET (Joint
Academic Network) in the UK to the NSFNet at JVNC. We are still
re-routing all traffic between Penn State and NCAR and Princeton
and NCAR via JVNCnet and the University of Colorado. The users are
very satisfied with the access that they have to NCAR over JVNCNet
and UC. We received requests from users to look at the possibility
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of rerouting traffic from their sites to other NSF supercomputer
centers.
The communication rooms and facilities have been in the process of
upgrade for the last two months, the first phase was the
construction of an annex to allow for the installation of the new
NSFNet equipment, the annex to the communications room complies
with all the requirements in terms of electric power and air
conditioning as well as space. This phase has been accomplished.
The work continues in the upgrade of the communication facilities.
Our "new" NSFnet node is up and running, it is at the present time
connected to MERIT, it is happily "talking" EGP with a router at
JVNC, and is getting ready to pass data.
The internal JVNC network has been redesigned to allow for better
access to the different facilities available (supercomputers, front
ends, graphics stations, printers, external networks, etc...), and
the implementation is moving along. Once fully implemented we will
be able to account for utilization of all network resources within
the JVNC LAN and interaction with the external networks as well as
the JVNCNet regional network.
The JVNC Network Operations Center (JVNCNet NOC) provides support
to the JVNCNet network as well as the internal network of the JVNC.
The NOC is staffed by the network staff from 9 a.m. to 5 p.m. Mon-
Fri, and is on call between 5 p.m. and 9 a.m.. The computer
operators monitor and perform minor troubleshooting tasks between 5
p.m. and 9 a.m. and provide for backup network operations center.
Routing:
A program was written, and runs in the background on JVNCA and
JVNCB to check for routing loops and clears the problem when it
occurs, the program runs every 5 minutes. A way to avoid the
routing problems seen from outside sites is by filtering the
information listened to from the site, to accept only the routing
information from the directly attached campus only. A plan is
under current evaluation on that effect.
A program runs every 10 minutes on JVNCA to detect number of
changes on the routing database of the "gated" program. These
changes are recorded as <timestamp> <value> and represent changes
in routing protocol, gateway or metric (in milliseconds). During
the month of June there were certain days where the routing
activity has been out of normal, getting peaks of 1600 route
changes. These data could be correlated with events on the NSFnet
backbone or/and the ARPANET, and represent a degree of stability
(or instability) in those networks and the JVNCNet network. We
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have seen in the past that most of these changes occured as metric
changes for routes on the NSFnet backbone.
Access to JVNC:
Arpanet:
The JVNC PSN ( PSN 16 ) is fully operational. It is at the present
time connected to JVNCA and will soon be connected to two routers
(part of the JVNC-LAN). All the gateways within the JVNC system,
that are under JVNC staff administration default now to JVNCA which
shares its routing information with the ARPANET and NSFNet (phase I
backbone). JVNC is announcing to the ARPANET 14 networks with
egpmetric of 0 and 16 networks with egpmetric of 3. Some of these
networks have been disconnected from the ARPANET and JVNC is
providing their only access to it.
NSFnet:
The phase I backbone is still operational. The "new" backbone,
(phase II) is expected to come on line by July 1st. At this point
in time it seems to be moving ahead according to plans. JVNC has
been exchanging routing information with the new backbone for a few
weeks, and test traffic has been moving across.
Bitnet: The JVNC Bitnet gateway (JVNCC) is performing well for mail
delivery between Internet and Bitnet.
Tymnet/Telenet: Tymnet without news.
Dial-in: No significant news.
JVNC Local Area Network:
In the process of modification to a new configuration. Systems
included are 5 ethernet segments (each one with different IP subnet
address), built with redudant paths. Appletalk connections for the
whole building with gateways to Internet.
For more Information Contact:
Network Operations:
JVNCnet NOC,
electronic mail address: "JVNCnet-noc@jvnca.csc.org"
phone number: (609) 520-2000, x448
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Network Informations:
JVNCnet NIC,
electronic mail address: "JVNCnet-nic@jvnca.csc.org"
phone number: (609) 520-2000, x448
---------------------------------------------------------------------------
JVNCnet Network Topology
------------------------
Boston U.---Harvard---MIT---Brown---Wesleyan
| | |
Dartmouth---Northeastern | Yale
| | |
Umass (Amherst) | |
| | |
| ============ |
----------------|| ||-------------
|| ||
IAS_--------------------|| ||------------U. of Penn
Montclair State---------|| JVNC ||------------Penn State
NYU---------------------|| ||------------U. of Colorado
Columbia----------------|| ||------------Princeton
U. of Arizona-----------|| ||------------Rutgers
Rochester---------------|| ||------------NJIT- -Stevens
============ | ------- -UMDNJ
----------------------------------------------------------------------
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JVNC Local Area Network Configuration
-------------------------------------
Regional Network LAN Front-ends LAN
| |
=============== ====================
| |
--------------------------------------
| JVNC Internal routers |------- Telenet
NSFnet ----| |------- ARPANET
| |------- Dial-in
--------------------------------------
| |
================ ====================
| |
Graphics LAN External networks LAN
---------------------------------------------------------------------------
by Sergio Heker (heker@jvnca.csc.org)
NATIONAL CENTER FOR ATMOSPHERIC RESEARCH AND UNIVERSITY SATELLITE
NETWORK PROJECT
The USAN Satellite system was officially down for a four day period
to install the long awaited ComStream radio updates. The network
was totally down for only 24 hours however, with the remaining time
devoted to technician travel, BERT testing and site debugging.
During the ComStream changeover, the Institute for Naval
Oceonography was added as a new member of the USAN Satellite net.
by Don Morris (morris@windom.ucar.edu)
PITTSBURGH SUPERCOMPUTING CENTER
No report received.
SAN DIEGO SUPERCOMPUTER CENTER
The last RT for the new NSFnet NSS has arrived at SDSC.
Our ARPAnet PSN is now announcing via EGP our own two IP networks
(the local Ethernet and the Apollo ring), UC Santa Barbara, UC
Ivine, and the Salk Inst. We have given some thought to ARPAnet
gateways here at SDSC, and have decided that it would be a good
thing to get our current one, a much used uVAX, out of the gateway
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game.
We are considering a couple of alternatives:
- Use the new NSFnet gear. This would mean getting an IBM X.25
card for the PSPs. This would greatly simplify the routing out
of SDSC both for ourselves and our attached nets.
- Use the existing NSFnet fuzzball. We can move the ACC 5250
card from the uVAX into the fuzzball, hook it up to the PSN and
have a dedicated box for the link.
OPUS, our SUN 3/50 running gated, is now announcing a few nets via
EGP into the new NSFNET backbone (but is not listening to any).
We have discovered a bug in V7.4b of the Proteon code which
distributes static routes via RIP even though it was not told to do
so. This is wreaking havoc on BARRnet, since we had a static route
to net 31 (the Univ. of Calif. library automation system). At
present we have a filter in the p4200 which prevents traffic
to/from net 31 (which does not make our librarian happy) until we
get new software from Proteon.
We still are looking forward to upgrading the p4200 with Proteon's
newer CPU, Ethernet cards(a pair), and level 8.0 software.
by Paul Love (loveep@sds.sdsc.edu)
BARRNET
No report received.
MERIT/UMNET
While Merit has supported the MIT-SLF protocol on its many asynch
lines for almost a year now, support for SLIP (Serial Line Internet
Protocol), typically used in Unix systems, has just been
implemented as an additional protocol. This will allow users who
wish to use an inexpensive asynchronous serial line for an Internet
gateway to connect a port on a host to a port on a Merit SCP for
this purpose. The SCP will act as a subnet gateway in order to pass
IP datagrams at a speed up to 19.2Kbps. We are beta testing this
week and expect to support SLIP on any of the 10,000 Merit ports
within a few weeks.
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We are currently considering the technical feasibility of
supporting Dial-Up IP in the same way CSnet has announced this
capability. This is a modification of SLIP with added
identification/authentication.
by (Laura_Kelleher@merit.edu)
MIDNET
No report received.
MRNET
We are still receiving user reports of problems encountered while
using NSFnet/ARPANET; however there have been problems with our
ARPANET interface that may have caused some of these problems. We
have also begun to measure utilized bandwidth on the 56kb line from
MRNet to Illinois, and on the 56kb line from MSC to ARPANET. In
general, during June NSFnet appeared fairly reliable, although some
users reported that FTP transmissions were slow (which is one of
the reasons we are beginning to measure utilized bandwidth).
by Ken Carlson (kgc@uf.msc.umn.edu)
NORTHWESTNET
NWnet operated in full production mode throughout May and June with
its primary link to NSFnet being a leased 56 Kb land line from U of
Washington to SDSC. We experienced an unusually high rate of
hardware and line problems around the network; most were diagnosed
and repaired within a day.
We now have DECnet in production on all Proteon routers on the
network. Although DECnet connectivity exists throughout the
network, there is currently very little applications use; the vast
majority of traffic is still IP, though we expect this to change
somewhat in the next few months as we move to a genuine dual-
protocol environment. Because of area-number management problems,
DECnet access is currently limited to academic NWnet members only.
Engineering design is in process to expand the network to include 4
new non-academic members. Also, a voice grade leased line is now
in place from a NWnet router at the U of Washington to the
University of British Columbia. As soon as some line noise
problems are resolved, this will provide the latter institution
with TCP/IP access to NSFnet through NWnet.
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The Boeing Network Managment Center is experimenting with SGMP on a
Sun workstation for network monitoring and control.
As of June 28, the Seattle NSS is up and running reliably at the U
of Washington with NWnet networks advertised by EGP to the new
NSFnet backbone (which, as of that date, appears to be down more
than it has been up, doing "destructive testing" until the cut-over
date of July 1). All appears ready for the big cutover; more data
next month.
by JQ Johnson (jqj@hogg.cc.uoregon.edu)
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NYSERNET
Clarkson Albany
| |
| |
| |
Rochester ========== Cornell ======= Syracuse ====== Rensselaer
|| || / ||
|| || / ||
|| || / ||
|| || NyserNet ||
|| ..... Oswego || NISC ||
Buffalo ... Alfred || ||
| :..... Fredonia || ||
| || ||
| || ||
| || ||
| || ||
| Stonybrook ____ Columbia ====================== N Y U ===:\
| / | | __/ | ||
| Brookhaven ____/ / | ___/ | ||
| / | / | ||
| AOA === NYNEX S+T NSMAC _____ C U N Y _______ Poly ||
| || | \ ||
| || | \ ||
| || | \ ||
| Compass -------- Garden City | \_____ Rockefeller
| | ||
| | ||
| | ||
Binghamton _______________________________| White Plains CO
_________________________________________________________
| |
| KEY: |
| |
| Line Speed Represented as: |
| ------------------ ----------------------------------- |
| NYTel RCI Kbps line type examples Planned |
| --- --- ------ --------- -------------- ------- |
| |
| T1 DS1 1,540 double || = // \\ ~ |
| |
| DDS DS0 56 single | _ / \ ^ |
| |
| (sub-rate) 9.6 dots : . , ` |
|_________________________________________________________|
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JUNE EVENTS:
- NYSERNet/NISC moved to new headquarters
- installation of NYSERNet to NSFNet Gateway (N2NGW.NYSER.NET),
but no traffic
- completion of IDEA11-01 SNMP INOC, no UNIX agent/server
yet (15July88 est)
- continued work on ANSI/ISO Z39.50 and application bridge for same
- Mark Fedor and Marty Schoffstall participated in Annapolis IETF
- NYSERNet Site Technical Meeting (nysertech) at NYU
- Bill Schrader and Marty Schoffstall gave RIB presentation to
FRICC technical group
- Board of Directors meeting in Albany
by Martin Lee Schoffstall <schoff@nisc.nyser.net>
OARNET
No report received.
SESQUINET
The complete initially proposed SesquiNet configuration. The
following campus networks are being served, and are advertised via
EGP to NSFnet and (currently via UIUC) the Arpanet core:
Baylor College of Medicine 128.249
BCM-Technologies 192.31.88
Houston Area Research Center 192.31.87
Prairie View A&M University 129.208
Rice University 128.42
Texas A&M University 128.194
Texas Southern University 192.31.101
and the University of Houston 129.7
The new NSFnet backbone node at Rice University became operational
during the last week of June, and has proved quite reliable. FTPs
of 96kb/s across the new NSFnet are typical. All our current
problems relate to sites on NSFnet that have not yet gotten their
routing through the new backbone to work yet.
Our Arpanet line finally went down during the last week of June.
During the first part of the month it had been very stable and
useful, and we will miss it. Our current primary core gateway
advertiser is now uxc.cso.uiuc.edu, thanks to Ross Veach. We will
probably shift this to one of the gateways that will serve to
exchange packets between the Arpanet and the new NSFnet backbone
some time this month.
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During June 15-17 I attended the IETF meeting at Annapolis. My
primary agenda there were issues of routing exchange between NSFnet
and the mid-level nets.
During June 22-24 I attended a workshop at NASA/Ames on Policy-
based Routing. This workshop dealt both with the technical aspects
of policy-based routing and with specific policy constraints of the
federally supported research networks represented by the FRICC.
We will soon resume our testing cisco's support for dual protocol
(IP and DECnet) routing.
by Guy Almes (almes@rice.edu)
SURANET
No report received.
WESTNET
1. The IBM NSS is working at the University of Utah, in a
sporadic manner. Connectivity, once established, is very
stable and fast - with significantly less delay than over the
ARPANET.
2. After analyzing some traffic statistics, we have orderer a T-1
line to be installed between the University of Colorado at
Boulder and NCAR. We have also ordered Dowty Information
Systems CSU's, and cisco T-1 interfaces. We expect to have
this line running at T-1 by the end of July.
3. We are preparing for the Westnet Steering Committee meeting to
be held in Denver, on July 7th.
4. Westnet West has been slowly migrating onto the Internet,
thanks to the efforts of Mr. Lee Hollar at the University of
Utah. Access appears stable, and trouble free.
by Patrick J Burns (pburns@super.org)
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TASK FORCE REPORTS
------------------
APPLICATIONS -- USER INTERFACE
The task force met June 22-23 at Olivetti Research Center in
Menlo Park. Primary topics of discussion were progress
reports on voice server work; summary reports of the video
working group and "shared X" meetings; real-time requirements
of voice and video; user interface architecture; and periodic
revelations from the Colab project at Xerox PARC. In
addition, overviews of relevant work were presented by
observers George Champine (DEC/MIT Project Athena), Greg
Foster (Xerox PARC), Phil Gust (HP Labs), Dick Phillips (Los
Alamos National Laboratory), and Andrew Schulert (On
Technology). A more detailed summary will be posted in next
month's issue.
Keith Lantz (LANTZ@ORC.OLIVETTI.COM)
AUTONOMOUS NETWORKS
No internet-related progress to report.
Deborah Estrin (Estrin@OBERON.USC.EDU)
END-TO-END SERVICES
IP Multicasting:
* Steve Deering published RFC-1054, "Host Extensions for IP
Multicasting", in May. This is the up-to-date
specification which will soon be proposed as an Internet
standard.
* Steve also announced the availability of host code to
implement RFC-1054, as extensions to the "4.3+" (4/4/88)
Berkeley networking code. It is available for anonymous
FTP from Stanford. Eric Nordmark ported the code to Sun
OS 4.0, and a release will be available shortly from
Stanford. For more information, contact:
deering@pescadero.stanford.edu.
* BBN Labs is making an important contribution to IP
multicasting development writing the gateway forwarding
code for IP multicast, for Butterfly gateways and for
BSD-based gateways.
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* Steve Deering will present a paper "Multicast Routing in
Internetworks and Extended LANs" at the August SIGCOMM'88
meeting. This paper proposes extensions to two common
internet routing protocols -- distance-vector routing and
link-state routing -- to support low-delay datagram
multicasting.
VMTP:
* The VMTP Unix implementation is being revised to bring it
up to specification and extend the implementation. It
has been ported to execute within the Sun OS 4.0 kernel,
by Eric Nordmark of the Swedish Institute of Computer
Science. This revised implementation should be available
for distribution by the end of the summer, if not sooner.
* Dave Cheriton will present a paper "Exploiting Recursion
to Simplify RPC Architectures", which covers the main
ideas behind some major simplications to VMTP, at
SIGCOMM'88.
Performance:
* Bill Nowicki of Sun has experimented with the
retransmission algorithms of NFS over UDP. A modified
application of the Van's TCP timeout scheme is being
applied within NFS to provide dynamic adaptation to
Internet characteristics, reducing the number of useless
retransmissions. Dynamic transfer size adjustment is
more difficult, but the prototype implementation adapted
to a 9.6K bps line and to the Arpanet in experiments.
Bob Braden (Braden@ISI.EDU)
INTERNET ARCHITECTURE
No activity to report this month.
Dave Mills (Mills@HUEY.UDEL.EDU)
INTERNET ENGINEERING
The Internet Engineering Task Force (IETF) held a three day
meeting at the U.S. Naval Academy in Annapolis, Maryland on
June 15-17. The meeting was hosted by Terry Slattery. The
final agenda, as conducted at the meeting, is given below.
The major points of the meeting included:
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Internet Monthly Report JUNE 1988
1) Thirteen of the seventeen Working Groups met and
reported. The final agenda below gives the thirteen that
met at this IETF. The IETF Chair stressed the importance
of WG progress and reporting. Working Groups that do not
seemed to be making significant progress toward their
stated goals or not not report their activities in a
timely fashion will be dissolved. A new WG (to be co-
chaired by Drew Perkins (CMU), Phil Prindeville (McGill)
and Russ Hobby (UC Davis)) was formed to address the
issue of a standard Serial Line IP (SLIP).
2) Members of the Federal Research Internet Coordinating
Committee (FRICC) attended most portions of the 3 day
IETF. The FRICC met during the Working Group sessions to
discuss, among other issues, the status of the Research
Internet Backbone (RIB). Steve Wolff (NSF) , Mark Pullen
(DARPA) and Bill Bostwick (DOE) combined to present
details of the FRICC and RIB to the IETF.
3) Two presentations were made which provided an overview of
the TCP/IP networking landscape in Canada. John Curley
of the National Research Council of Canada (roughly the
equivalant of the U.S. NSF) gave an overview of their
funding plans. Philip Prindeville of McGill University
gave an overview of several networking proposals.
4) Van Jacobson presented an insightful analysis on self-
organizing behavior of allegedly random processes in
networks. In particular, he presented data showing how
DECnet routing updates quickly became synchronized. He
used this to supprt his allegation that under certain
conditions the Arpanet may be behaving like a giant token
ring, leading to degraded performance because of lock-
step behavior.
5) Internet Problem Description Forms were given to all WG
chairs, for their meetings at the IETF. The completed
forms are still being collected.
6) Proceedings of the March IETF in San Diego were distributed
in Annapolis and are now available from the NIC.
Final Agenda for the June 15-17 IETF
----- ------ --- --- ---- ----- ----
This is the final agenda, as conducted at the meeting, for the
June 15-17 IETF at the U.S. Naval Academy in Annapolis,
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Maryland.
There was be a total of 13 Working Group meetings in the first
1.5 days. In addition, there was an NSFnet Technical Group
meeting and a FRICC meeting, both on Thursday morning.
WEDNESDAY, June 15
9:00 am Opening Plenary (Introductions and
local arrangements)
9:30 am Working Group Morning Session
o Host Requirements (Braden, ISI)
o SNMP (Rose, TWG)
o Open Routing (Hinden, BBN)
o Open SPF IGP (Petry, UMD and Moy, Proteon)
o TELNET Linemode (Dave Borman, Cray)
12:00 Lunch
1:30 pm Working Group Afternoon Session
o Host Requirements (Braden, ISI)
o Landmark Routing (Tsuchiya, MITRE)
o Short-Term Routing (Hedrick, Rutgers)
o Open INOC (Case, UTK)
5:00 pm Recess
THURSDAY, June 16
9:00 am Opening Plenary
9:15 am Working Group Session
o Management Information Base (Partridge, BBN)
o Authentication (Schiller, MIT)
o PDN Routing (Rokitanski, DFVLR)
o Performance and Congestion Control
(Mankin, MITRE)
o Domains (Mamakos, UMD)
o NSFnet Technical Group (Choy, NCAR)
o FRICC (Bostwick, DOE)
11:30 am Lunch
1:00 pm Opening Plenary Statement (Gross, MITRE)
1:15 pm Network Status Reports
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o Status of the New NSFnet (Braun,
UMich/Rekhter, IBM)
o FRICC Initiatives (Bostwick, DOE/Pullen,
DARPA/Wolff, NSF)
This talk presents an overview of the
networking initiatives supported by the
Federal Research Internet Coordinating
Committee (FRICC). In particular, the
Research Internet Backbone (RIB) will
be discussed.
o Arpanet Report (Lepp, BBN)
o Canadian Research Networking (Curley,
NRC of Canada)
The National Research Council of Canada
has been developing a plan for an IP-based
network for Canadian researchers. This
report will give an overview of this and
other networking activities in Canada.
o Switched Multi-Megabit Data Service (SMDS)
(Kramer and Singh, NYNEX)
This talk will focus on work currently
underway on the development broadband Public
networks, highspeed data communications and
the evolving underlying technologies to
support such services. In addition to SMDS,
Broadband ISDN and FDDI will be discussed.
5:00 pm Recess
FRIDAY, June 17
9:00 am Internet Report (Brescia, BBN)
9:30 am Working Group Reports and Discussion
o Authentication
o CMIS-based Network Managament
o Domains
o Internet Host Requirements
o Internet Management Information Base
o Open SPF-based IGP
o Open Systems Internet Operations Ctr
o Open Systems Routing
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o PDN Routing Group
o Performance and Congestion Control
12:00 Lunch
1:00 pm Working Group Reports and Discussion (cont.)
o Short Term Routing
o SNMP Extensions
o TELNET Linemode
1:30 pm Technical Presentations
o TCP Performance and Other Unconfirmed Rumors
(Van Jacobson, LBL)
``Phill, ...self-organization...
synchronization...Smolunchowski's equation...
anyway, if you want to hear these wild,
unsubstantiated theories, I'll be glad to
talk about them.''
o Bellringing, Clock Punching and Gongferming
(Mills, UDel)
The latest on the Network Time Protocol (NTP).
o Cray TCP Performance, An Update (Borman, Cray)
Would you believe a 150 Mbps TCP?
o Issues in Canadian Networking
(Prindeville, McGill)
An overview of a proposed Canadian Internet
Architecture with special attention to
specific problems (eg, routing metrics under
multi-protocolsupport and multi-gateway
reachibility.
4:45 pm Concluding Plenary Remarks
5:00 pm Adjourn
Phill Gross (gross@gateway.mitre.org)
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INTERNET MANAGEMENT
No report received.
Vint Cerf (Cerf@A.ISI.EDU)
PRIVACY
The IAB Privacy Task Force had a productive two-day meeting at
Digital Equipment Corporation's facility in Littleton,
Massachusetts, 15-16 June 1988. Attendees were: Dave Balenson,
Curt Barker, Don Brinkley, Morrie Gasser, Russ Housley, Steve
Kent, John Linn, Dan Nessett, Mike Padlipsky, Rob Shirey, and
Steve Wilbur. Jim Bidzos, of RSA Data Security, Inc.,
attended the 15 June session.
Russ Housley, of Xerox Special Information Systems, was a new
member as of this meeting.
RFC-1040 implementation activities were reviewed, including
the successful exchange of encrypted messages between the
National Bureau of Standards and University College London.
A partial and preliminary draft (distributed to task force
members in advance of the meeting) for a key management RFC to
complement the privacy-enhanced electronic mail processing
procedures defined in RFC-1040 was discussed. The roles of
users, notaries, ordering representatives, and of RSA Data
Security in its planned capacity as certificate issuing
authority were considered, and will be noted in subsequent
revisions to the key management RFC.
The next PTF meeting was scheduled for the afternoon of 13
September through 15 September at Xerox Special Information
Systems, Arlington, VA.
John Linn (Linn@CCY.BBN.COM)
ROBUSTNESS AND SURVIVABILITY
No report received.
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SCIENTIFIC COMPUTING
No report received.
TACTICAL INTERNET
No report received.
TESTING AND EVALUATION
No report received.